In some code you will encounter the following way of opening files. This was used before "with" was added to the language. It is not a recommended way of opening a file as you might easily forget to call "close" and that might cause trouble. For example you might loose data. Don't do that.

I am showing this as the first example, because it is easuer to understand.

filename = 'examples/files/numbers.txt'

fh = open(filename, 'r')
for line in fh:
    print(line)
fh.close()